Practice Free H12-931_V2.0-ENU Exam Online Questions
If there is a problem with the call quality, you can adjust the voice quality by setting the port gain at both ends on the network management. When the port volume is low, increase the call gain; when the port volume is high, reduce the call gain.
- A . True
- B . False
If you want to establish a GE-level path on the network management, which of the following steps are necessary? (Multiple choice)
- A . Configure wavelength
- B . Configure logical connections
- C . Create OCh path
- D . Create an ODUk trail
40 Gbit/s and 100 Gbit/s coherent systems do not require dispersion compensation because the dispersion tolerance of the corresponding boards is large. NGWDM does not support mixed transmission of non-coherent networks and coherent networks.
- A . True
- B . False
After which of the following steps can the rollback operation no longer be performed?
- A . Loading
- B . Distribution
- C . Activation
- D . Submission
Among the following versions of GSCC boards, which of the following support CF cards?
- A . N1GSCc
- B . N4GSCC
- C . N6GSCC
- D . N3GSCC
Which of the following statements is correct about the OSNR test of OTN system? (Multiple choice)
- A . When using OSA to test COSNR, it is impossible to directly test the noise within the signal band, so the out-of-band noise interpolation method is used to calculate the noise within the band.
- B . Out-of-band noise interpolation is to use the instrument to insert noise to replace the actual noise of the system
- C . After the wavelength signal passes through a filter such as D40, the noise power between channels will be reduced. Therefore, the OSIR value of the traditional OSA test is too high.
- D . The 40G and 100G wavelengths overlap due to signal spectrum overlap, so the OSNR value tested by the traditional OSA test method is low
- E . The integration method for testing OSNR is also called the shutdown method, which interrupts the channel service during the test. In addition, when the number of waves is small, the OSNR value measured by the integration method has a certain deviation from the actual value.
- F . The OptiX OSN8800/6800 MCA online test of 100G wavelength OSNR also uses the shutdown method
In the network, clock devices are usually used to ensure network synchronization. Different clock sources are selected according to the requirements of different clock accuracy. If the clock accuracy of G.811 is to be met, which clock source can be selected? (Multiple choice)
- A . GPS+Atomic clock
- B . GPS+Crystal Clock
- C . Absolute atomic clock + atomic clock
- D . Beidou + Rivet atomic clock
The signal flow analysis method locates the fault by checking the service flow of the faulty wavelength division system point by point.
- A . True
- B . False
The single-fiber bidirectional optical interface of the PTN equipment distinguishes upstream and downstream business flows based on time slots.
- A . TRUE
- B . FALSE